DURHAM, N.C. ? For the second straight game, Duke overcame a slow start to win in a rout.

Shelden Williams had 23 points, 14 rebounds and seven blocks Tuesday, lifting the seventh-ranked Blue Devils past Illinois-Chicago, 88-55.

J.J. Redick added 21 points for the Blue Devils, who used a big run spanning halftime to improve to 7-0 for the fourth time in five seasons.

Jovan Stefanov scored 15 first-half points to lead the Flames (3-4), who got off to a quick start but soon succumbed to Duke’s increased defensive intensity and quick transition game.

Duke shot 49 percent and used a run of 21 points spanning halftime to turn the game into a rout. The Blue Devils’ defense took the Flames out of their once-steady offense and held them to one field goal during a 71/2-minute span.

The Blue Devils finished with 19 points off 23 turnovers, held UIC to 37 percent shooting and blocked a school-record 18 shots.

The only blemish was that the Blue Devils — as they did against Toledo in coach Mike Krzyzewski’s 700th career victory Sunday — found themselves down early. The Blue Devils trailed 10-2 before beating the Rockets, 82-54.

Tuesday, Duke didn’t take its first lead until more than 13 minutes in.

“We showed that we can be a really good team,” Krzyzewski said. “We need to show it for a full 40 minutes. And it starts with playing good defense.”

Williams had just three shots in the first half, and Krzyzewski told his team at halftime to look for its big man inside. The results were immediate, with Williams scoring the first eight points after the break and going 6-for-8 from the field in the second half.

No. 13 Louisville 85,

North Carolina A&T 51

Louisville, Ky. — Larry O’Bannon scored a season-high 25 points and grabbed 11 rebounds, leading the Cardinals (6-1) to their fifth straight win.

Francisco Garcia added 12 points, and Ellis Myles had 11 points and 10 rebounds for Louisville, which outrebounded the Aggies, 58-40, and held them to 28.1 percent shooting (20-of-71), including 3-of-18 from three-point range.

Sean Booker had 19 points for North Carolina A&T (1-8).